Saw set



Feb. 16, 1932. J p KOSKO 1,845,423

I SAW SET Filed Feb. 27, 1951 2 Sheets-Sheet l 7 2 .20 /7 I 2:, Z5 1 F i n l 22 1 .27 It? lnule nior 17021; 2? KSsZa Attorney Feb. 16, 1932. l KQSKO 1,845,423

SAW SET Filed Feb. 27, 1931 2 She ets-Sheec 2 7 Inventor A florne y Patented Feb. 16, 1932 UNITED STATES JOHN P. KOSKO, F GREENSIBURG, PENNSYLVANIA saw snr f Application filed February 27,1931. 7 Serial No. 518,860.

This invention relates to an improved mechanics tool especially designed for use by carpenters and generally referred to in the trade as a saw set, the same being commonly employed for adjusting the alternate teeth to the desired relative angular pos1t1on to expedite shear severing of the work.

Briefly stated, the improved tool is characterized by a pair of companion members including especially designed heads dlsposed in such relationship as to provide for dependable and positive leverage, and sa1d heads being provided with complemental plates having intermeshing teeth bendlng elements operating in an even plane wlth one another to insure efficient setting operation.

In carrying the invention into practice, I have evolved and produced a simple and expedient tool characterized by an assoclation of features which coherently co-operates for bending the saw teeth uniformly and in true longitudinal alinement, the tool belng easy and dependable in use and capable of fulfilling the requirements of a device of this class in a highly satisfactory manner.

In the drawings:

Figure l is a side elevational view showing the manner in which the tool is employed.

Figure 2 is a top plan view thereof.

Figure 3 is a bottom plan View.

Figure 4 is a front end elevational vlew.

Figure 5 is aperspective view of one of the parts.

Figure 6 is a perspective view of the lugequipped tooth bending or setting plate.

The tool as seen in the drawings is primarily composed of two dominant companion parts 7 and 8 respectively, both being very much the same in general construction. The upper part 7 comprises a handle 9 centrally connected to the bight portion 10 of the U-shaped head. As seen in Figure 5, the spaced parallel arm portions of this head are denoted by the numeral 11 and the bight portion is curved downwardly as indicated at 12 and its underside forms a backing plate having substantially L-shaped end portions 13. This arrangement provides a keeper for the setting plate 14, and this plate is held removably in place by fastenings or screws 15 as shown in Figure 3.

The projecting longitudinal edge portion of the plate 14 is provided with longitudinally spaced lugs 16 having bevelled saw contacting faces, these being bevelled downwardly. The intervening spaces or notches 17 form what may be designated as anvils and these are reversely bevelled.

The part 8 includes a handle '18 centrally connected to a U-shaped head 19 which is of such proportions as to permit the first-named head to fit rockably therebetweenQ- In fact, the arms of the two heads are pivotally connected together as indicated at 20 to provide for the desired severing leverage and proper alinement of the tooth setting plates.

"There is a cross member 21 between the free ends of the arms of the head 19 and this is fashioned on its under side to form a 'backingelement and a longitudinal abutment shoulder 22 in order to accommodate the complemental plate 14a. This plate 14a which is detailed in Figure 6 is of the same construction as the one shown in Figure 5, the same being fastened in place by screws 23 and provided with bevelled lugs 17a cooperating with the anvil surfaces 17 The: anvil surfaces 16a of this plate 14a co-operate with the first-named lugs 16. This allows the lugs and anvil surfaces-to come together in proper nested or interfitting relationship for bending the saw teeth the full length of the. teeth and in uniform angular relationship. Incidently, the saw is distinguished by the numeral 24 in the drawlngs.

' I On the head-19 and extending laterally from the central portion just below the pivot 20 andat opposite sides I provide outstanding cars 25 each provided with a set screw 26 having a rest 27 to engage the cutting points of the saw teeth for regulating'the depth of'the set. w r i r The numeral 28 merely designates the 7 spring which is interposed between the handie or levers 9 and 18 to swing the jaws apart. Incident-1y, the term jaws is used to designate unitary heads and their complemental lug-equipped plates, and it will be noted that the pivots are so related as to allow these plates to swing together in the same plane to insure uniform bending of the teeth, and to rovide for powerful bending leverage.

n practice, the plates 14; and 14a are disposed on opposite sides of the teeth of the saw 24 as represented in the drawings and the handles 9 and 18 are pressed together in an obvious manner. The adjustment of the tool with respect to the saw as to depth of bending is regulated by the adjusting screws 26 with their heads 27 hearing on the teeth. Thus, as the handles are brought together the lugs 16 move into the seats 16a and the lugs 17a move. into the seats 17. Consequently the teeth of the saw are bent into opposite directions as is conventional in an operation of this kind. I L

It is thought that the description taken in connection with the drawings will enable a clear understanding of the invention to be had. Therefore, a more lengthy description is thought unnecessary.

While the preferred embodiment of the invention has been shown and described, it is to be understood that minor changes coming within the field of invention claimed may be resorted to in actual practice if desired.

I claim:

A saw setting tool comprising a pair of members each consisting of a handle part and a substantially U-shaped head part, the head part of one of the members fitting in the head part of the other member, means for pivoting together the extremities of the limbs of the inner head part to intermediate parts of the limbs of the other head part, the inner head part having a lower portion extending between its limbs and formed with V a substantially flat bottom face with a depending flange at the outer edge of said face, a toothed plate attached to said flat face and having its rear edge abutting the flange with the tooth arranged in the forward edge, a cross piece connected with the ends of the limbs of the outer head part and having a large flat face and a depending flange at the outer edge of said face, a toothed plate fastened to the said flat face of the cross piece and having its outer edge abutting the flange with the teeth arranged on its inner edge for cooperating with the teeth of the first plate, perforated ears extending outwardly from intermediate portions of the limbs of the outer head part, and screws passing through the perforations and having enlarged lower ends engaging the teeth of a saw being set.

In testimony whereof I affix my signature.

JOHN P. KOSKO. 

